I would think it much better to have a multi-branching script that would allow a conversation more like:
"Hello, this is Alvin Jones, a volunteer for the Fred Thompson presidential campaign. Might I have a moment of your time?" "Sure, I guess."
"Thank you very much. I'll try to keep this brief. First of all, how familiar are you with candidate Fred Thompson?"
"He seems like an okay guy, but he doesn't really seem pro-life."
"Fred Thompson has been endorsed by National Right to Life and many other organizations, and has a solid pro-life voting record."
"Really? I thought he came out against a Constitutional amendment to ban abortion."
"True, but that's because pushing for an amendment at this point won't accomplish anything unless or until 38 states severely restrict abortion. That can't happen until Roe v. Wade is overturned and the power is returned to the states."
"You have a point. I still like ___, though."
"That's fine, but if you'd like to know more about Fred you can visit his web site. Do you have Internet access?"
"Yes, I do."
"Good. Visit www.fred08.com whenever you like, and thank you for your time. Good night."
"Good night." (click)
Din’t mean to hit “post” quite yet. Anyway, I don’t know if there’s some law that requires long annoying monologues, but I would think a more interactive format would work much better at winning people’s supports. While it’s true that asking someone for a moment of their time will mean you don’t get to deliver your monologue if they say “no”, I would think that a polite good bye a that point would leave a much more favorable impression of the candidate than a long boring speech in which the listener isn’t interested.